Yeah. I have already noticed that article before. But just can not find the "mp4audec: MPEG-4 Natural Audio Decoder (Edition 2001) 2003-08-27" which they talked of anywhere. So I just come here to ask whether anyone knows where such software is avaiable. I have also visited the website-"ftp.iis.fhg.de/incoming/cvs ",resulting in error of no such folder any longer.